Posts Tagged ‘ ip cameras’

Web Ready Security Camera System

Written By:
Monday, January 10th, 2011

If you need to be able to monitor your security and surveillance system cameras from just about anywhere in the world at any time, consider using a web ready security camera system. These systems use the internet as the vehicle for transmitting their data so anywhere there is broadband internet access, there is potential for monitoring your home or business security camera system.

A web ready security camera system is reasonably priced, easy to install, and easy to operate thanks to technological advancements in the electronics and computer fields over the past few years. It differs from a standalone digital video security camera system in that it utilizes the internet to transmit the signals, and a personal computer or Mac computer to monitor and store the digital video image files.

A standalone, non-web ready security camera system consists of one or more digital video cameras, a Digital Video Recorder (DVR) with a Digital Signal Processor (DSP), and a monitor. The digital video camera captures the reflective light from objects and transposes these light images into electronic images. The camera normally has an on-board analog-to-digital processing chip that changes the electronic information into pure digital or binary form.

A video transmission cable, usually an RG-59 coaxial cable, must be run from each camera to the DVR unit. The signals from the cameras travel through this cable to the DVR unit where the DSP compiles them into a digital video file. Digital video files can be extremely large in size so the DSP uses a COmpression/DECompression (CODEC) utility to shrink the size of the file without sacrificing a large amount of quality. After the digital video file is created it can be viewed live on a monitor or stored on the DVR’s Hard Disk Drive (HDD) for later use.

A web ready security camera system produces the same sort of final results but goes about doing it in a different way. First a web ready security camera system has either IP (Internet Protocol ready) cameras or an IP DVR or an IP server. If the system uses IP ready cameras, each camera has its own built in web server technology that is used for the Internet. The camera connects to the internet either via a Cat 5 Ethernet wire or wirelessly using a corresponding wireless modem or router.

If the web ready security camera system uses an IP DVR, then normal cameras are connected to the DVR and the system works like a typical standalone system. Except that the DVR (and therefore the digital video files and camera controls) can be controlled remotely via the internet and some other end-user device.

If the web ready security camera system uses an IP server, it may be able to digitize older analog based cameras and send them over the Internet or it may simply combine the signals of several newer digital cameras and send them over the Internet. In either case, the digital video file must be sent over the internet to a connected computer that can act as a storage and monitor device or to some other web-compatible monitoring device such as an iPhone, iPad, 3G and 4G smartphones and other similar devices. (Note that if the signal is received by another DVR or personal computer, the system does not have a device to save digital video files to and therefore can only be used to monitor the cameras in real-time).

Probably the most profound advantage of web ready security camera systems is the incredibly almost infinite geographic locations in the world where the system can be monitored and operated. Theoretically, anywhere there is broadband Internet accessibility; the system can be monitored and controlled.

Perhaps the biggest disadvantage to these types of systems is that since they are connected to the internet, a very public domain, they may be susceptible to hacker intervention and even computer viruses.

All in all, there is nothing that can provide you with such extensive capability to monitor and control your system remotely than a web ready security camera system. If you need more information or would like to purchase a web ready security camera system, please contact one of Security Camera King’s security experts today either via live chat or telephone.

digital video file

IP Cameras Security Surveillance

Written By:
Friday, January 7th, 2011

One of the ever increasing most popular digital video camera security systems is the IP cameras security surveillance. This camera system is unique in that it utilizes the internet as a medium for sending video images and remotely controlling the camera making accessibility nearly ubiquitous throughout the world.

There are a few variations on the theme on how these cameras and/or camera security systems operate, but the end product is the same. A digital video file that can be viewed virtually anywhere there is broadband internet access and stored on a personal computer’s hard drive for later use or archiving.

Let’s take a quick look at an average standalone digital video security camera system and how it works so we can better understand how IP cameras security surveillance systems work. A standalone system is so named because it can be used by itself without any additional outside equipment (i.e. other than the standard system equipment, no additional PC or other device for example is required).

A typical standalone digital video security system contains one or more digital video cameras, a Digital Video Recorder or DVR with a Digital Signal Processor or DSP, and a monitor. The digital video cameras in these systems capture light images and transform them into electronic video images. The camera normally contains an analog-to-digital processor chip that sends the video image data in binary or digital form to the DVR unit.

The DVR unit consists of three primary types of devices; the Hard Disk Drive (HDD), the DSP previously mentioned, and any additional peripheral type devices such as CD or DVD recorders to make portable copies of video files. The digital signal comes from the camera via an RG-59 coaxial video transmission cable to the DVR unit. Each individual camera must have its own cable run from the camera to the DVR unit.

When the data reached the DVR unit the DSP processes the data, applies a COmpression/DECompression utility (or CODEC) that greatly compacts the information and reduces the final size of the digital video file. The digital video files is then viewed on a monitor (live) and/or saved to the HDD for later use.

IP cameras security surveillance systems differ in that they normally connect to the Internet instead of using a video transmission cable to relay the camera data to the DVR unit. Furthermore, IP (which stands for Internet Protocol ready) cameras do this normally by one of two methods; either the data is sent via a Cat 5 Ethernet cable to a router or modem or wirelessly to a wireless router or wireless modem.

Using the internet, especially the wireless technology, creates a great advantage for this system. Once the signal make it to an Internet connection the cameras can be viewed and/or controlled from anywhere in the world that broadband internet is accessible. This includes working in tandem with devices such as a Personal Computer or Mac Computer, iPhones, iPads and the like, and many 3G and 4G smartphones. Literally, you can see what is going on at home in Miami when you are on business travel in Paris.

Another advantage of the IP cameras security surveillance system is the ability to use wireless internet technology. This eliminates the need to run the RG-59 coaxial cable from each camera to the DVR unit, greatly reducing installation time and making the process a do-it-yourself project that is a snap.

IP cameras used for security surveillance are able to work by processing the video signal on board and sending it via the camera’s on board web server technology. A variation on this theme is the IP DVR. In this instance the standard cameras are used in conjunction with the DVR but the DVR has the IP capability and is connected to a router or modem. The files are stored on the DVR units HDD but are accessible via the internet to the user.

On the receiving end of an IP camera security surveillance system that uses a personal computer the digital video files are stored on the computer’s HDD and viewed on the computer’s monitor. Normally this systems work in tandem with common internet browsers such as Internet Explorer, Safari, etc. Installation setup normally consists of a self installing software CD so for many systems no prior computer networking knowledge is needed.

Security Camera King has a full line of digital video security systems. Contact one of our experts today if you are interested in purchasing an IP cameras security surveillance system.


Geovision DVR Security Camera

Written By:
Wednesday, July 28th, 2010

What is a GeoVision DVR Security camera? GeoVision is a manufacturer of Internet Protocol or IP security cameras. A DVR or Digital Video Recorder is a device similar to the hard disk drive on a personal computer, in this case used to store digital video files. A GeoVision DVR security camera is an IP digital video security camera that can either be connected to a personal computer using either a GeoVision DVR PC card or via the internet. Perhaps a little background information and a closer look at GeoVision products will help to describe this concept in detail.

GeoVision Inc. is an international security camera and accessories based company that was established in February 1998. It has subsidiaries in Japan, China, Brazil, the Czech Republic, and the United States. GeoVision sells GV-Series security camera system products such as DVR systems, IP cameras, video servers, compact standalone DVRs, PC-based DVR cards, and other accessories.

All of GeoVision’s current security camera products are IP ready security cameras. An IP ready security camera can be connected and networked via the internet and often uses a personal computer to replace the monitor and DVR that would be used in standalone DVR systems. These cameras’ physical connections are made usually with a CAT 5 type (or Ethernet) cable. The cameras have their own built-in servers and can communicate with a personal computer by either using proprietary software or simply using web browsers like Internet Explorer.

GeoVision DVR Security Cameras are personal computer based systems. The DVR portion of the system is a proprietary GeoVision PCI type card that is installed on a personal computer. GeoVision manufactures several different types of PCI DVR cards. The latest versions of these cards include the GV-DVR V8.3 and the GV-DVR V8.3 Hybrid. The GV-DVR V8.3 is designed for use with a variety of different manufacturers’ digital video cameras. The GV-DVR V8.3 Hybrid is designed for use with a variety of different manufacturer’s cameras as well, but can merge the use of digital video cameras with support for legacy analog cameras also.

A GeoVision DVR security camera system utilizes a personal computer as the DVR “system.” For typical standalone digital video DVR camera systems, the components of the system consist of the cameras, a processor/DVR with a compression utility, and a monitor. The digital video camera sends a video transmission signal to the processor with analyzes it and creates a digital video file from it.

Digital video is created by taking several digital photos in a very short time (on average, 30 photographs called “frames” per second). The data from these files will get incredibly large in a very short period of time. Incredibly large digital video files consume large amounts of digital storage space quickly, are hard to manage, and can slow down even the fastest processors. For this reason a COmpression/DECompression or CODEC utility is used by the processor. This utility which may be in the form of a software program or an integrated circuit shrinks the size of the digital video file but maintains its superior quality.

GeoVision DVR Security Camera cards may contain several components of a standalone DVR system that can be utilized on a personal computer instead. For example, GeoVision DVR PCI cards usually provide the input connectors or the camera’s output line, and they contain the processor and the CODEC utility. Sometimes they may even contain the DVR, although most cards utilize the PC’s hard disk drive as the DVR. IF the system contains any special functions such as Pan-Tilt-Zoom (PTZ) control cameras the cards will often contain the circuitry needed to control these cameras through the computer.

One GeoVision DVR Security Camera specialty is the GV-LPR. The GV-LPR is GeoVision’s proprietary parking lot security system that includes License Plate Recognition (LPR). In addition to reading and recognizing vehicle license plates this system is also contains advance motion detection features. Motion detection combined with PTZ cameras can actually track or follow moving objects such as automobiles.

A GeoVision DVR security camera then, is a security camera that can utilize the services of a personal computer by using a special PCI card to act as a standalone security camera system. Since GeoVision also manufactures a hybrid PCI card, a GeoVision DVR Security camera system can contain both contemporary digital video and legacy analog video cameras. In addition, GeoVision has a full line of DVR cards with additional features to fit just about any security system need.


How does a security camera system work?

Written By:
Saturday, November 7th, 2009

There are two types of security cameras systems, Analog and IP (sometimes refered to as network cameras). Here is a very basic explanation of how they work and what the major difference is between analog surveillance systems an IP camera systems.

Analog surveillance systems:

Most security cameras on the market today are standard analog security cameras connected directly to a digital video recorder. The cameras is this type of system consist of a lens, DSP chip (digital signal processing chip) and a housing. The cameras are simply the window used by the DVR (digital video recorder) to see. The cameras are connected to the DVR using transmission cables. There are many types of cables, but they will all have a connection directly to the DVR. The DVR is the heart of this system. The security digital video recorder receives the video from the camera, compresses it and stores it on a hard drive to be retrieved later. Most DVRs also convert the analog video to digital format and are able to stream that video over the internet using a built in webserver. In this scenario, the DVR is responsible for compression, conversion, storage and streaming of all the video that comes from each camera. addittionaly, the DVR is the inteligence behind the cameras and is responsible for all the motion detection, schedules, notifications, alarm inputs and more.

In the end, this type of surveillance system is usually less expensive because the cameras are simply cameras and there is only one unit that does all the grunt work, the DVR.

IP Surveillance systems:

IP or network security camera systems are very different from analog systems because each camera does the job of the DVR. essentially, an IP camera is a standard security camera that can also compress video, convert the video to digital format and stream it over ethernet. So each camera is esentially its own DVR. Some IP cameras also have SD card slots so that they can store video directly onto an SD card. IP cameras are sometimes connected to an NVR (network video recorder) instead of a DVR. Since the video is compressed and converted to digital at the camera, the camera can stream the video over a network to a PC or NVR that will record the compressed video. The benefit of IP cameras is that it is easy to add additional cameras to the network and there are higher resolutions available than in standard analog surveillance systems.

There are several challenges facing IP camera systems. To benefit from the higher resolution available with IP cameras places greater demand on both bandwidth and storage. Also, because each camera basically acts as a DVR and must have it’s own built in webserver, they are much more expensive. At this time, only about 10% of surveillance systems are IP systems. At some point, when technology catches up with itself and is able to solve the bandwidth, storage and cost issues, IP camera systems will begin to take more of the CCTV market share.